Washing composition containing alkylamido ether sulphates, anionic surfactants and cationic polymers

ABSTRACT

The present invention relates to a composition for washing keratin materials, comprising, in a cosmetically acceptable medium, at least one (C 8-30 ) alkylamido ether sulphate, at least one anionic surfactant chosen from (C 6 -C 24 )alkyl sulphates, (C 6 -C 24 ) alkyl ether sulphates, (C 6 -C 24 )alkyl ether carboxylates and anionic (C 6 -C 24 )alkyl polyglycosides, and at least one cationic polymer whose cationic charge density is greater than or equal to one milliequivalent per gram. The invention also relates to a cosmetic process for treating keratin materials using the composition according to the invention, and also to a use of this composition as a shampoo.

[0001] The invention relates to a composition for washing keratinmaterials, comprising, in a cosmetically acceptable medium, at least one(C₈₋₃₀) alkylamido ether sulphate, at least one anionic surfactant andat least one cationic polymer, to a cosmetic process for treatingkeratin materials and to a use as a shampoo.

[0002] The known combinations of anionic surfactants and cationicpolymers lead to cosmetic properties which are not entirelysatisfactory, in particular on dried hair.

[0003] The Applicant has found, surprisingly, that the use of (C₈₋₃₀)alkylamido ether sulphate in combination with certain anionicsurfactants and certain cationic polymers, in a cosmetically acceptablemedium, improves the cosmetic properties of dried hair, in particulartheir smooth feel, manageability and sheen. In addition, thisformulation has an excellent level of ocular tolerance, enabling it tobe used in particular for children's shampoos.

[0004] One subject of the present invention is thus a composition forwashing keratin materials, comprising, in a cosmetically acceptablemedium, at least one (C₈₋₃₀) alkylamido ether sulphate, at least oneanionic surfactant and at least one cationic polymer.

[0005] The expression <<cosmetically acceptable medium>> means a mediumwhich is compatible with all keratin materials, such as the skin, thehair, the nails, the eyelashes and the eyebrows, the lips and any otherarea of the body and the face, and which also have a pleasant odour,appearance and feel.

[0006] Another subject of the invention consists of a cosmetic processfor treating keratin materials using the abovementioned composition.

[0007] Another subject of the invention is a use of the compositionaccording to the invention as a shampoo.

[0008] Other subjects, characteristics, aspects and advantages of theinvention will emerge even more clearly on reading the description andthe various examples which follow.

[0009] According to the invention, the washing composition comprises, ina cosmetically acceptable medium:

[0010] at least one (C₈₋₃₀) alkylamido ether sulphate,

[0011] at least one anionic surfactant chosen from (C₆-C₂₄) alkylsulphates, (C₆-C₂₄) alkyl ether sulphates, (C₆-C₂₄) alkyl ethercarboxylates and anionic (C₆-C₂₄) alkyl polyglycosides, and

[0012] at least one cationic polymer whose cationic charge density isgreater than or equal to 1 milliequivalent per gram (meq/g).

[0013] The (C₈-₃₀) alkylamido ether sulphates which may be used in thecomposition according to the invention are in the form of salts ofalkali metals such as sodium, of alkaline-earth metals such asmagnesium, of ammonium or of amino alcohols.

[0014] The alkyl group containing from 8 to 30 carbon atoms andpreferably from 10 to 20 carbon atoms may be linear or branched, and maybe chosen in particular from lauryl, myristyl and palmityl groups.

[0015] The number of alkylene oxide units, preferably of ethylene oxideunits, in the (C₈₋₃₀) alkylamido ether sulphates which is suitable inthe invention is between 1 and 100 and preferably between 2 and 20.

[0016] Preferably, sodium lauryl/myristylamido ether sulphate containing3 mol of ethylene oxide, sold under the name Laural® AMS by the companyCECA, may be used in the composition according to the invention as(C₈-C₂₀) alkylamido ether sulphate.

[0017] The anionic surfactants which are suitable in the presentinvention are chosen from (C₆-C₂₄) alkyl sulphates, (C₆-C₂₄) alkyl ethersulphates, (C₆-C₂₄) alkyl ether carboxylates and anionic (C₆-C₂₄) alkylpolyglycosides that are well known in the art, and preferably from(C₆-C₂₄) alkyl ether sulphates.

[0018] They are in the form of salts of alkali metals, for example ofsodium and of potassium, of alkaline-earth metals, for example ofmagnesium, of ammonium, or of amino alcohol. The anionic surfactantswith ether units comprise a number of alkylene oxide units, preferablyof ethylene oxide units, of between 1 and 100 and preferably between 2and 20.

[0019] As examples of anionic alkyl polyglycosides, mention may be madein particular of alkylglycoside citrates and alkylglycoside tartrates,and as an example of (C₆-C₂₄) alkyl ether sulphate, mention may be madeof sodium lauryl ether sulphate (70/30 C12/C14) containing 2.2 mol ofethylene oxide.

[0020] The washing composition according to the invention comprises oneor more cationic polymers whose cationic charge density is greater thanor equal to 1 milliequivalent per gram but preferably between 1 meq/gand 8 meq/g.

[0021] The cationic charge density may be determined according to theKjeldahl method.

[0022] Cationic polymers with a cationic charge density of greater thanor equal to 1 meq/g which may be used in accordance with the presentinvention may be chosen from all those that are already known per se asimproving the cosmetic properties of hair treated with detergentcompositions, namely, in particular, those described in patentapplication EP-A-0 337 354 and in French patent applications FR-A-2 270846, 2 383 660, 2 598 611, 2 470 596 and 2 519 863.

[0023] Even more generally, in the context of the present invention, theexpression <<cationic polymer>> denotes any polymer containing cationicgroups and/or groups which may be ionized into cationic groups.

[0024] The cationic polymers are chosen from those which contain unitscomprising primary, secondary, tertiary and/or quaternary amine groupswhich may either form part of the main polymer chain or may be borne bya side substituent directly linked thereto.

[0025] The cationic polymers used generally have a number-averagemolecular mass of between 500 and 5×10⁶ approximately and preferablybetween 10³ and 3×10⁶ approximately.

[0026] Among the cationic polymers which may be mentioned moreparticularly are polymers of the polyamine, polyamino amide andpolyquaternary ammonium type. These are known products.

[0027] The polymers of the polyamine, polyamido amide and polyquaternaryammonium type, which may be used in accordance with the presentinvention and which may be mentioned in particular, are those describedin French patents Nos. 2 505 348 and 2 542 997. Among these polymers,mention may be made of:

[0028] (1) quaternized or non-quaternizedvinyl-pyrrolidone/dialkylaminoalkyl (meth)acrylate copolymers, such asthe products sold under the name <<Gafquat®>> by the company ISP, suchas, for example, Gafquat® 734, 755 or HS100, or alternatively theproduct known as <<Copolymère 937>>. These polymers are described indetail in French patents 2 077 143 and 2 393 573.

[0029] (2) Polymers consisting of piperazinyl units and of divalentalkylene or hydroxyalkylene radicals containing straight or branchedchains, optionally interrupted by oxygen, sulphur or nitrogen atoms orby aromatic or heterocyclic rings, as well as the oxidation and/orquaternization products of these polymers. Such polymers are described,in particular, in French patents 2 162 025 and 2 280 361.

[0030] (3) Water-soluble polyamino amides prepared in particular bypolycondensation of an acidic compound with a polyamine; these polyaminoamides can be crosslinked with an epihalohydrin, a diepoxide, adianhydride, an unsaturated dianhydride, a bis-unsaturated derivative, abis-halohydrin, a bis-azetidinium, a bis-haloacyldiamine, a bis-alkylhalide or alternatively with an oligomer resulting from the reaction ofa difunctional compound which is reactive with a bis-halohydrin, abis-azetidinium, a bis-haloacyldiamine, a bis-alkyl halide, anepihalohydrin, a diepoxide or a bis-unsaturated derivative; thecrosslinking agent is used in proportions ranging from 0.025 to 0.35 molper amine group of the polyamino amide; these polyamino amides can bealkylated or, if they contain one or more tertiary amine functions, theycan be quaternized. Such polymers are described, in particular, inFrench patents 2 252 840 and 2 368 508.

[0031] (4) The polyamino amide derivatives resulting from thecondensation of polyalkylene polyamines with polycarboxylic acidsfollowed by alkylation with difunctional agents. Mention may be made,for example, of adipic acid/dialkylaminohydroxyalkyldialkylene-triaminepolymers in which the alkyl radical contains from 1 to 4 carbon atomsand preferably denotes methyl, ethyl or propyl. Such polymers aredescribed in particular in French patent 1 583 363.

[0032] Among these derivatives, mention may be made more particularly ofthe adipic acid/dimethylaminohydroxy-propyl/diethylenetriamine polymerssold under the name “Cartaretine F, F4 or F8” by the company Sandoz.

[0033] (5) The polymers obtained by reaction of a polyalkylene polyaminecontaining two primary amine groups and at least one secondary aminegroup with a dicarboxylic acid chosen from diglycolic acid and saturatedaliphatic dicarboxylic acids having from 3 to 8 carbon atoms. The molarratio between the polyalkylene polyamine and the dicarboxylic acid isbetween 0.8:1 and 1.4:1; the polyamino amide resulting therefrom isreacted with epichlorohydrin in a molar ratio of epichlorohydrinrelative to the secondary amine group of the polyamino amide of between0.5:1 and 1.8:1. Such polymers are described in particular in U.S. Pat.Nos. 3,227,615 and 2,961,347.

[0034] Polymers of this type are sold in particular under the name“Hercosett 57” by the company Hercules Inc. or alternatively under thename “PD 170” or “Delsette® 101” by the company Hercules in the case ofthe adipic acid/epoxypropyl/diethylenetriamine copolymer.

[0035] (6) Cyclopolymers of methyldiallylamine or ofdimethyldiallylammonium, such as the homopolymers or copolymerscontaining units corresponding to formulae (VI) or (VI′):

[0036] in which formulae k and t are equal to 0 or 1, the sum k+t beingequal to 1; R₁₂ denotes a hydrogen atom or a methyl radical; R₁₀ andR₁₁, independently of each other, denote an alkyl group having from 1 to22 carbon atoms, a hydroxyalkyl group in which the alkyl grouppreferably has 1 to 5 carbon atoms, or a lower amido-(C₁-C₄) alkylgroup, or R₁₀ and R₁₁ can denote, together with the nitrogen atom towhich they are attached, heterocyclic groups such as piperidyl ormorpholinyl; Y⁻ is an anion such as bromide, chloride, acetate, borate,citrate, tartrate, bisulphate, bisulphite, sulphate or phosphate. Thesepolymers are described in particular in French patent 2 080 759 and inits Certificate of Addition 2 190 406.

[0037] Mention may be made, for example, of the diallyldimethylammoniumchloride homopolymer sold under the name <<Merquat® 100>> by the companyCalgon and the copolymers of diallyldimethylammonium chloride and ofacrylamide sold under the name <<Merquat® 550>>.

[0038] (7) The quaternary diammonium polymer containing repeating unitscorresponding to the formula:

[0039] in which formula (VII):

[0040] R₁₃, R₁₄, R₁₅ and R₁₆, which may be identical or different,represent aliphatic, alicyclic or arylaliphatic radicals containing from1 to 20 carbon atoms or lower hydroxyalkylaliphatic radicals, oralternatively R₁₃, R₁₄, R₁₅ and R₁₆ together or separately, constitute,with the nitrogen atoms to which they are attached, heterocyclesoptionally containing a second heteroatom other than nitrogen, oralternatively R₁₃, R₁₄, R₁₅ and R₁₆ represent a linear or branched C₁-C₆alkyl radical substituted with a nitrile, ester, acyl or amide group ora group —CO—O—R₁₇—D or —CO—NH—R₁₇—D where R₁₇ is an alkylene radical andD is a quaternary ammonium group;

[0041] A₁ and B₁ represent polymethylene groups containing from 2 to 20carbon atoms which may be linear or branched, saturated or unsaturated,and which may contain, linked to or intercalated in the main chain, oneor more aromatic rings or one or more oxygen or sulphur atoms orsulphoxide, sulphone, disulphide, amino, alkylamino, hydroxyl,quaternary ammonium, ureido, amide or ester groups, and

[0042] X⁻ denotes an anion derived from an inorganic or organic acid;

[0043] A₁, R₁₃ and R₁₅ can form, with the two nitrogen atoms to whichthey are attached, a piperazine ring; in addition, if A₁ denotes alinear or branched, saturated or unsaturated alkylene or hydroxyalkyleneradical, B₁ can also denote a group —(CH₂)_(n)—CO—D—OC—(CH₂)_(n)— inwhich D denotes:

[0044] a) a glycol residue of formula: —O—Z—O—, where Z denotes a linearor branched hydrocarbon radical or a group corresponding to one of thefollowing formulae:

—(CH₂—CH₂—O)_(x)—CH₂—CH₂—

—[CH₂—CH(CH₃)—O]_(y)—CH₂—CH(CH₃)—

[0045] where x and y denote an integer from 1 to 4, representing adefined and unique degree of polymerization or any number from 1 to 4representing an average degree of polymerization;

[0046] b) a bis-secondary diamine residue such as a piperazinederivative;

[0047] c) a bis-primary diamine residue of formula: —NH—Y—NH—, where Ydenotes a linear or branched hydrocarbon radical, or alternatively thedivalent radical

—CH₂—CH₂—S—S—CH₂—CH₂—;

[0048] d) a ureylene group of formula: —NH—CO—NH—.

[0049] Preferably, X⁻ is an anion such as chloride or bromide.

[0050] These polymers generally have a number-average molecular mass ofbetween 1000 and 100,000.

[0051] Polymers of this type are described in particular in Frenchpatents 2 320 330, 2 270 846, 2 316 271, 2 336 434 and 2 413 907 andU.S. Pat. Nos. 2,273,780, 2,375,853, 2,388,614, 2,454,547, 3,206,462,2,261,002, 2,271,378, 3,874,870, 4,001,432, 3,929,990, 3,966,904,4,005,193, 4,025,617, 4,025,627, 4,025,653, 4,026,945 and 4,027,020.

[0052] It is more particularly possible to use the polymers consistingof repeating units corresponding to the formula:

[0053] in which R₁, R₂, R₃ and R₄, which may be identical or different,denote an alkyl or hydroxyalkyl radical containing from 1 to 4 carbonatoms approximately, n and p are integers ranging from 2 to 20approximately and X⁻ is an anion derived from an inorganic or organicacid.

[0054] One compound of formula (a) which is particularly preferred isthe one for which R₁, R₂, R₃ and R₄ represent a methyl radical and n=3,p=6 and X=Cl, referred to as Hexadimethrine chloride according to theINCI (CTFA) nomenclature.

[0055] (8) Quaternary polyammonium polymers consisting of units offormula (VIII):

[0056] in which formula:

[0057] R₁₈, R₁₉, R₂₀ and R₂₁, which may be identical or different,represent a hydrogen atom or a methyl, ethyl, propyl, β-hydroxyethyl,β-hydroxypropyl or —CH₂CH₂(OCH₂CH₂)_(p)OH radical,

[0058] where p is equal to 0 or to an integer between 1 and 6, with theproviso that R₁₈, R₁₉, R₂₀ and R₂₁ do not simultaneously represent ahydrogen atom,

[0059] r and s, which may be identical or different, are integersbetween 1 and 6,

[0060] q is equal to 0 or to an integer between 1 and 34,

[0061] X denotes a halogen atom,

[0062] A denotes a dihalide radical or preferably represents—CH₂—CH₂—O—CH₂—CH₂—.

[0063] Such compounds are described in particular in patent applicationEP-A-122 324.

[0064] Among these products, mention may be made, for example, of“Mirapol® A 15”, “Mirapol® AD1”, “Mirapol® AZ1” and “Mirapol® 175” soldby the company Miranol;

[0065] (9) homopolymers or copolymers derived from acrylic acid ormethacrylic acid and comprising units:

[0066] in which the groups R₂₂ independently denote H or CH₃, the groupsA₂ independently denote a linear or branched alkyl group of 1 to 6carbon atoms or a hydroxyalkyl group of 1 to 4 carbon atoms,

[0067] the groups R₂₃, R₂₄ and R₂₅, which may be identical or different,independently denote an alkyl group of 1 to 18 carbon atoms or a benzylgroup,

[0068] the groups R₂₆ and R₂₇ represent a hydrogen atom or an alkylgroup of 1 to 6 carbon atoms,

[0069] X₂ ⁻ denotes an anion, for example methosulphate or halide suchas chloride or bromide.

[0070] The comonomer(s) which may be used in the preparation of thecorresponding copolymers belong(s) to the family of acrylamides,methacrylamides, diacetoneacrylamides, acrylamides and methacrylamidessubstituted on the nitrogen with lower alkyls, alkyl esters, acrylicacid or methacrylic acid, vinylpyrrolidone or vinyl esters.

[0071] (10) Quaternary polymers of vinylpyrrolidone and ofvinylimidazole, such as, for example, the products sold under the namesLuviquat® FC 905, FC 550 and FC 370 by the company BASF.

[0072] (11) Polyamines such as Polyquart® H sold by Henkel under thereference name “Polyethylene glycol (15) tallow polyamine” in the CTFAdictionary.

[0073] (12) Crosslinked polymers of methacryloyloxy (C₁-C₄) alkyltri(C₁-C₄) alkylammonium salts such as the polymers obtained byhomopolymerization of dimethylaminoethyl methacrylate quaternized withmethyl chloride, or by copolymerization of acrylamide withdimethylaminoethyl methacrylate quaternized with methyl chloride, thehomo—or copolymerization being followed by crosslinking with a compoundcontaining olefinic unsaturation, in particular methylenebisacrylamide.A crosslinked acrylamide/methacryloyloxyethyltrimethyl-ammonium chloridecopolymer (20/80 by weight) in the form of a dispersion containing 50%by weight of the said copolymer in mineral oil can be used moreparticularly. This dispersion is sold under the name “Salcaree® SC 92”by the company Allied Colloids. A crosslinkedmethacryloyloxyethyltrimethylammonium chloride homopolymer containingabout 50% by weight of the homopolymer in mineral oil or in a liquidester can also be used. These dispersions are sold under the names“Salcare® SC 95” by the company Allied Colloids.

[0074] Other cationic polymers which can be used in the context of theinvention are polyalkyleneimines, in particular polyethyleneimines,polymers containing vinylpyridine or vinylpyridinium units, condensatesof polyamines and of epichlorohydrin, quaternary polyureylenes andchitin derivatives.

[0075] Among all the cationic polymers which can be used in the contextof the present invention, it is preferred to use cyclopolymers, inparticular the polymers or copolymers of dimethyldiallylammoniumchloride and of acrylamide, sold under the names “Merquat® 100” and“Merquat 550” by the company Calgon.

[0076] As other cationic polymers which are suitable in the presentinvention, mention may be made in particular of cellulose polymers, forexample the cellulose ether derivatives comprising quaternary ammoniumgroups described in French patent No. 1 492 597, and in particular thepolymers sold under the names <<JR>> (JR 400, JR 125 or JR 30M) or<<LR>> (LR 400 or LR 30M) by the company Union Carbide Corporation.These polymers are also defined in the CTFA dictionary ashydroxyethylcellulose quaternary ammoniums which have reacted with anepoxide substituted with a triethylammonium group.

[0077] Mention may also be made of cellulose copolymers or cellulosederivatives grafted with a water-soluble quaternary ammonium monomer,which are described in particular in U.S. Pat. No. 4 131 576, such ashydroxyalkylcelluloses, for instance hydroxymethyl-, hydroxyethyl-orhydroxypropylcelluloses grafted in particular with amethacryloylethyltrimethylammonium,methacrylamidopropyltrimethylammonium or dimethyldi-allylammonium salt.

[0078] The commercial products corresponding to this definition are moreparticularly the products sold under the name <<Celquate® L 200>> and<<Celquate H 100>> by the company National Starch.

[0079] The washing composition according to the invention comprises the(C₈₋₃₀) alkylamido ether sulphates and anionic surfactants as mentionedabove, in a total amount of between 3% and 50% by weight, and thecationic polymers in an amount of between 0.001% and 10% by weight andpreferably between 0.05% and 5% by weight relative to the total weightof the composition.

[0080] The weight ratio between the anionic surfactants and the (C₈₋₃₀)alkylamido ether sulphates is preferably between 100 and 0.01 andpreferentially between 20 and 1.

[0081] The cosmetically acceptable medium may consist of water or of amixture of water and a cosmetically acceptable solvent such as a C₁-C₄lower alcohol, for example ethanol, isopropanol, tert-butanol orn-butanol; alkylene glycols, for instance propylene glycol or glycolethers; C₅-C₁₀ alkanes; acetone, methyl ethyl ketone; C₁-C₄ alkylacetates, for instance methyl acetate, ethyl acetate or butyl acetate;dimethoxyethane or diethoxyethane; and mixtures thereof. The pH of thecompositions of the invention is between 4 and 8 and preferably between5 and 7.

[0082] The compositions according to the invention may also containconventional additives that are well known in the art, such as naturalor synthetic anionic, amphoteric, zwitterionic, nonionic or cationic,associative or non-associative polymeric thickeners, non-polymericthickeners, for instance acids or electrolytes, nacreous agents,opacifiers, fragrances, mineral, plant and/or synthetic oils, esters offatty acids or of polyethylene glycols, dyes, organic or mineralparticles, volatile or non-volatile, modified or unmodified silicones,preserving agents and pH stabilizers.

[0083] A person skilled in the art will take care to select the optionaladditives and the amount thereof such that they do not harm theproperties of the compositions of the present invention.

[0084] These additives are present in the composition according to theinvention in an amount ranging from 0% to 20% by weight relative to thetotal weight of the composition.

[0085] The washing compositions according to the invention may be in theform of fluid or thickened liquids, gels, creams, mousses, simpleemulsions or multiple emulsions.

[0086] They may be used, for example, as shampoos, rinse-out careproducts, deep-down care masks, shower gels or lotions or creams fortreating the scalp.

[0087] The present invention also relates to a cosmetic process fortreating keratin materials, which consists in applying an effectiveamount of a washing composition as described above to the keratinmaterials and in carrying out a rinsing operation, after an optionalperiod of exposure.

[0088] According to one preferred embodiment of the invention, thecomposition may be used as a shampoo.

[0089] The example which follows illustrates the present invention andshould not be considered in any way as limiting the invention.

EXAMPLE

[0090] A shampoo according to the invention was prepared using thefollowing ingredients: Sodium lauryl ether sulphate (70/30 7.0 gC12/C14) containing 2.2 mol of ethylene oxide Sodiumlauryl/myristylamido ether sulphate 11.4 g (3 mol of ethylene oxide) asan aqueous 30% solution, sold by the company CECA under the nameLaural ® AMS Mixture of oxyethylenated palm glycerides 4.0 g (200 mol ofethylene oxide) and of oxyethylenated coconut glyceride (7 mol ofethylene oxide) as an aqueous 70% suspension, sold by the companyGoldschmidt under the name Antil ® 80 Oxyethylenated coconutmono/diglycerides 4.0 g (30 mol of ethylene oxide), sold by the companyGoldschmidt under the name Rewoderm ® LI 63 Hydroxyethylcellulosecrosslinked with 0.25 g epichlorohydrin and quaternized withtrimethylamine, sold by the company Union Carbide under the name JR 400Dioleate of polyethylene glycol (55 mol of 2.0 g ethylene oxide) and ofpropylene glycol, as an aqueous-alcoholic solution, sold by the companyGoldschmidt under the name Antil ® 141 liquid Citric acid qs pH 7Preserving agents qs Demineralized water qs 100.0 g

[0091] The shampoo according to the invention is applied to the hair andrinsed out, and the hair is dried.

[0092] The hair is observed to have a smooth feel and greatmanageability and sheen. This composition has good ocular tolerance.

1. Composition for washing keratin materials, characterized in that itcomprises, in a cosmetically acceptable medium, at least one (C₈₋₃₀)alkylamido ether sulphate, at least one anionic surfactant chosen from(C₆-C₂₄) alkyl sulphates, (C₆-C₂₄) alkyl ether sulphates, (C₆-C₂₄) alkylether carboxylates and anionic (C₆-C₂₄) alkyl polyglycosides, and atleast one cationic polymer whose cationic charge density is greater thanor equal to 1 milliequivalent per gram.
 2. Composition according toclaim 1, characterized in that the (C₈₋₃₀) alkylamido ether sulphatesand the said anionic surfactants are in the form of salts of alkalimetals or alkaline-earth metals, of ammonium or of amino alcohols. 3.Composition according to claim 1 or 2, characterized in that the (C₈₋₃₀)alkylamido ether sulphate is sodium lauryl/myristylamido ether sulphatecontaining 3 mol of ethylene oxide.
 4. Composition according to any oneof the preceding claims, characterized in that the anionic surfactantsare chosen from (C₆-C₂₄) alkyl ether sulphates.
 5. Composition accordingto any one of the preceding claims, characterized in that the (C₈₋₃₀)alkylamido ether sulphates and the said anionic surfactants are presentin a total amount of between 3% and 50% by weight relative to the totalweight of the composition.
 6. Composition according to any one of thepreceding claims, characterized in that the weight ratio between thesaid anionic surfactants and the (C₈₋₃₀) alkylamido ether sulphates isbetween 100 and 0.01.
 7. Composition according to claim 6, characterizedin that the ratio between the said anionic surfactants and the (C₈₋₃₀)alkylamido ether sulphates is between 20 and
 1. 8. Composition accordingto any one of the preceding claims, characterized in that the cationicpolymer with a cationic charge density of greater than or equal to 1milliequivalent per gram is chosen from: quaternized or non-quaternizedvinyl-pyrrolidone/dialkylaminoalkyl (meth)acrylate copolymers; polymersconsisting of piperazinyl units and of divalent alkylene orhydroxyalkylene radicals containing straight or branched chains,optionally interrupted by oxygen, sulphur or nitrogen atoms or byaromatic or heterocyclic rings, as well as the oxidation and/orquaternization products of these polymers; water-soluble polyaminoamides prepared in particular by polycondensation of an acidic compoundwith a polyamine; these polyamino amides can be crosslinked with anepihalohydrin, a diepoxide, a dianhydride, an unsaturated dianhydride, abis-unsaturated derivative, a bis-halohydrin, a bis-azetidinium, abis-haloacyldiamine, a bis-alkyl halide or alternatively with anoligomer resulting from the reaction of a difunctional compound which isreactive with a bis-halohydrin, a bis-azetidinium, abis-haloacyldiamine, a bis-alkyl halide, an epihalohydrin, a diepoxideor a bis-unsaturated derivative; the crosslinking agent is used inproportions ranging from 0.025 to 0.35 mol per amine group of thepolyamino amide; these polyamino amides can be alkylated or, if theycontain one or more tertiary amine functions, they can be quaternized;the polyamino amide derivatives resulting from the condensation ofpolyalkylene polyamines with polycarboxylic acids followed by alkylationwith difunctional agents; the polymers obtained by reaction of apolyalkylene polyamine containing two primary amine groups and at leastone secondary amine group with a dicarboxylic acid chosen fromdiglycolic acid and saturated aliphatic dicarboxylic, acids having from3 to 8 carbon atoms; the molar ratio between the polyalkylene polyamineand the dicarboxylic acid is between 0.8:1 and 1.4:1; the polyaminoamide resulting therefrom is reacted with epichlorohydrin in a molarratio of epichlorohydrin relative to the secondary amine group of thepolyamino amide of between 0.5:1 and 1.8:1; homopolymers or copolymerscontaining units corresponding to formulae (VI) or (VI′):

in which formulae k and t are equal to 0 or 1, the sum k+t being equalto 1; R₁₂ denotes a hydrogen atom or a methyl radical; R₁₀ and R₁₁,independently of each other, denote an alkyl group having from 1 to 22carbon atoms, a hydroxyalkyl group in which the alkyl group preferablyhas 1 to 5 carbon atoms, or a lower amido (C₁-C₄) alkyl group, or R₁₀and R₁₁ can denote, together with the nitrogen atom to which they areattached, heterocyclic groups such as piperidyl or morpholinyl; Y⁻ is ananion such as bromide, chloride, acetate, borate, citrate, tartrate,bisulphate, bisulphite, sulphate or phosphate; the quaternary diammoniumpolymer containing repeating units corresponding to the formula:

in which formula (VII): R₁₃, R₁₄, R₁₅ and R₁₆, which may be identical ordifferent, represent aliphatic, alicyclic or arylaliphatic radicalscontaining from 1 to 20 carbon atoms or lower hydroxyalkylaliphaticradicals, or alternatively R₁₃, R₁₄, R₁₅ and R₁₆, together orseparately, constitute, with the nitrogen atoms to which they areattached, heterocycles optionally containing a second heteroatom otherthan nitrogen, or alternatively R₁₃, R₁₄, R₁₅ and R₁₆ represent a linearor branched C₁-C₆ alkyl radical substituted with a nitrile, ester, acylor amide group or a group —CO—O—R₁₇—D or —CO—NH—R₁₇—D where R₁₇ is analkylene radical and D is a quaternary ammonium group; A₁ and B₁represent polymethylene groups containing from 2 to 20 carbon atomswhich may be linear or branched, saturated or unsaturated, and which maycontain, linked to or intercalated in the main chain, one or morearomatic rings or one or more oxygen or sulphur atoms or sulphoxide,sulphone, disulphide, amino, alkylamino, hydroxyl, quaternary ammonium,ureido, amide or ester groups, and X⁻ denotes an anion derived from aninorganic or organic acid; A₁, R₁₃ and R₁₅ can form, with the twonitrogen atoms to which they are attached, a piperazine ring; inaddition, if A₁ denotes a linear or branched, saturated or unsaturatedalkylene or hydroxyalkylene radical, B₁ can also denote a group—(CH₂)_(n)—CO—D—OC—(CH₂)_(n)— in which D denotes: a) a glycol residue offormula: —O—Z—O—, where Z denotes a linear or branched hydrocarbonradical or a group corresponding to one of the following formulae:—(CH₂—CH₂—O)_(x)—CH₂—CH₂——[CH₂—CH(CH₃)—O] _(y)—CH₂—CH(CH₃)— where x andy denote an integer from 1 to 4, representing a defined and uniquedegree of polymerization or any number from 1 to 4 representing anaverage degree of polymerization; b) a bis-secondary diamine residuesuch as a piperazine derivative; c) a bis-primary diamine residue offormula: —NH—Y—NH—, where Y denotes a linear or branched hydrocarbonradical, or alternatively the divalent radical —CH₂—CH₂—S—S—CH₂—CH₂—; c)a ureylene group of formula: —NH—CO—NH—; quaternary polyammoniumpolymers consisting of units of formula (VIII): —CH₂—CH₂ —S—S—CH₂—CH₂—;in which formula: R₁₈, R₁₉, R₂₀ and R₂₁, which may be identical ordifferent, represent a hydrogen atom or a methyl, ethyl, propyl,β-hydroxyethyl, β-hydroxypropyl or —CH₂CH₂(OCH₂CH₂)_(p)OH radical, wherep is equal to 0 or to an integer between 1 and 6, with the proviso thatR₁₈, R₁₉, R₂₀ and R₂₁ do not simultaneously represent a hydrogen atom, rand s, which may be identical or different, are integers between 1 and6, q is equal to 0 or to an integer between 1 and 34, X denotes ahalogen atom, A denotes a dihalide radical or preferably represents—CH₂—CH₂—O—CH₂—CH₂—; homopolymers or copolymers derived from acrylicacid or methacrylic acid and comprising units:

in which the groups R₂₂ independently denote H or CH₃, the groups A₂independently denote a linear or branched alkyl group of 1 to 6 carbonatoms or a hydroxyalkyl group of 1 to 4 carbon atoms, the groups R₂₃,R₂₄ and R₂₅, which may be identical or different, independently denotean alkyl group of 1 to 18 carbon atoms or a benzyl group, the groups R₂₆and R₂₇ represent a hydrogen atom or an alkyl group of 1 to 6 carbonatoms, X₂ ⁻ denotes an anion, for example methosulphate or halide suchas chloride or bromide; quaternary polymers of vinylpyrrolidone and ofvinyl imidazole; crosslinked polymers of methacryloyloxy (C₁-C₄)alkyltri (C₁-C₄) alkylammonium salts; polyalkyleneimines, polymers containing vinylpyridine or vinylpyridinium units, condensates of polyaminesand of epichiorohydrin, quaternary polyureylenes and chitin derivatives.9. Composition according to any one of claims 1 to 7, characterized inthat the cationic polymer with a cationic charge density of greater thanor equal to 1 milliequivalent per gram is chosen from cellulose etherderivatives comprising quaternary ammonium groups, cellulose copolymersor cellulose derivatives grafted with a water-soluble quaternaryammonium monomer, and mixtures thereof.
 10. Composition according to anyone of the preceding claims, characterized in that the cationic polymeris present in an amount of between 0.001% and 10% by weight relative tothe total weight of the composition.
 11. Composition according to claim10, characterized in that the cationic polymer is present in an amountof between 0.05% and 5% by weight relative to the total weight of thecomposition.
 12. Composition according to any one of the precedingclaims, characterized in that the cosmetically acceptable mediumconsists of water or of a mixture of water and a cosmetically acceptablesolvent.
 13. Composition according to any one of the preceding claims,characterized in that it comprises additives such as natural orsynthetic anionic, amphoteric, zwitterionic, nonionic or cationic,associative or non-associative polymeric thickeners, non-polymericthickeners, for instance acids or electrolytes, nacreous agents,opacifiers, fragrances, mineral, plant and/or synthetic oils, esters offatty acids or of polyethylene glycols, dyes, organic or mineralparticles, volatile or non-volatile, modified or unmodified silicones,preserving agents and pH stabilizers.
 14. Cosmetic process for treatingkeratin materials, characterized in that a washing composition accordingto any one of the preceding claims is applied to the keratin materials.15. Use of a washing composition according to any one of claims 1 to 13,as a shampoo.